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OWNER’S MANUAL
6 x 9-inch (150 x 230 mm) 2-Way Component System
Thank you for choosing JL Audio loudspeakers for
your automotive sound system.
We strongly recommend that you have your new loudspeakers installed by
an authorized JL Audio dealer. Your authorized dealer has the training,
expertise and installation equipment to ensure
optimum performance of these loudspeakers in your vehicle.
If you decide to install the loudspeakers yourself, please read this manual
thoroughly to familiarize yourself with their installation
requirements and setup procedures.
Should you have any questions regarding the instructions in this manual,
please contact your authorized JL Audio dealer for assistance, or call the
JL Audio Technical Support Department at (954) 443-1100
during business hours (USA - Eastern Time Zone).
2 | JL Audio - C1-690 Owners Manual
A
C
A
B
B
B
Due to ongoing product development, all specifications are subject to change without notice.
Woofer Physical Dimensions
Frame Outer Diameter (A) 6.38 x 9.33 in. / 162 x 237 mm
Motor Outer Diameter (B) 3.54 in. / 90 mm
Mounting Depth (C) 2.75 in. / 70 mm
B
A
D
C
A
D
B
A
C
Crossover Network Physical Dimensions
Width (A) 1.96 in / 50 mm
Height (B) 0.90 in / 23 mm
Depth (C) 1.34 in / 34 mm
Tweeter Fixture Physical Dimensions Flush-Mount Surface-Mount
Fixture Outer Diameter (A) 1.97 in / 50 mm 2.01 in / 51 mm
Fixture Mounting Hole Diameter (B) 1.75 in / 45 mm N/A
Fixture Mounting Depth (C) 0.40 in / 10 mm N/A
Tweeter Frontal Protrusion (D) 0.32 in / 8 mm 0.87 in / 22 mm
3
Due to ongoing product development, all specifications are subject to change without notice.
C1-690 SPECIFICATIONS:
Continuous Power Handling: 60 Watts
Recommended Amp Power: 10-100 Watts per channel (RMS)
Efficiency: 91.5 dB @ 1W / 1m | 97.5 dB @ 1W / 0.5m
Sensitivity: 94.0 dB @ 2.83V / 1m
Nominal Impedance: 4 ohm
Frequency Response: 39Hz - 22 KHz ± 3 dB
Woofer:
Injection-molded, mineral-filled, polypropylene cone
Rubber, positive roll surround
1.2 in. (30 mm) diameter voice coil
Flat, Conex® spider with integrated lead wires
Ferrite Magnet
Tweeter:
Edge-driven, silk-suspended aluminum dome
1.0 in. (25 mm) diameter diaphragm / voice coil
Ferrofluid cooling / damping
Neodymium magnet
Crossover:
Natural roll-off, low-pass
2nd order, high-pass filter with inductor and
electrolytic capacitor
Included Components and Parts:
• Two (2) C1-690cw 6 x 9-inch (150 x 230 mm) woofers
• Two (2) C1-100ct 1.0-inch (25 mm) tweeters
Two (2) surface-mount tweeter fixtures
Two (2) C1-100cthp in-line, high-pass filters on
4 ft. (1.2 m) wire harnesses
Two (2) metal spring clips (for tweeter flush-mounting)
• Eight (8) #8 x 1.50-inch (38mm) sheet metal screws
• Four (4) #6 x .625-inch (22 mm) sheet metal screws
• Eight (8) mounting clips
• Two (2) 4.7 mm female crimpable connectors
• Two (2) 2.8 mm female crimpable connectors
Two (2) 10mm stud bolts with fixed M4 nut
Two (2) 25mm stud bolts with fixed M4 nut
Two (2) M5 nuts
Two (2) bottom-mount spacer adaptor rings
GETTING STARTED
Turn off the audio system. It is also
advisable to disconnect the negative (–)
terminal of your vehicle’s battery whenever
performing installation work.
Before cutting, drilling or inserting any screw,
check clearances on both sides of the planned
mounting surface. Also check for any potential
obstacles, such as window tracks and motors,
wiring harnesses, etc. Check both sides of the
vehicle, many vehicles are not symmetrical!
Always wear protective eyewear.
SPEAKER PLACEMENT CONSIDERATIONS
Grilles are not included with C1 speakers, as they
are designed for installation into OEM (factory)
speaker locations, located behind factory grilles.
Should you need grilles, you will need to purchase
aftermarket grilles separately.
WARNING
!!
Prolonged exposure to sound pressure levels in
excess of 100dB can cause permanent hearing
loss. These high-performance loudspeakers can
exceed this level. Please exercise restraint in their
operation in order to preserve your ability to enjoy
their fidelity.
8 | JL Audio - C1-690 Owners Manual
Speaker Installation in Factory Locations:
Your new speakers have been designed to install,
without modifications, into most vehicles with OEM
speaker locations that accept a 6 x 9-inch (150 x 230
mm) speaker. Many factory 6 x 9-inch speakers use
four mounting screws, which will line up with the
mounting holes on your C1-690cw woofers.
Spacer adaptor rings are included to fit,
bottom-mount applications. Each spacer ring
can be placed on the front of the mounting
flange, in between the speaker and mounting
panel, as shown in Diagram F (page 9).
It is absolutely vital that the speaker frame fits into
the mounting hole cleanly. This must be checked prior
to tightening the screws. Never force the frame into
a hole that is too small, and do not attempt to tighten
the speaker onto an uneven surface. This will damage
your speakers.
The speaker should fit so that air does not leak
around the mounting flange. Air leaks will cause a
severe degradation in sound quality. Seal any air leaks
with an automotive-grade sealant material.
WARNING
!!
Hand-tighten the screws evenly in a criss-cross
pattern to avoid bending the speaker frame or
stripping the mounting screws.
Speaker Wiring:
If you will be using the factory speaker wires, it may
be necessary to change the terminations. This may
be accomplished by using an adaptor plug or simply
by cutting the factory connector off and using the
supplied crimp connectors to terminate the speaker
wires. The larger connector is for the positive terminal
and the smaller connector is for the negative terminal
of each C1-690cw.
If you choose to run new speaker wires, protect all
wiring from sharp edges by carefully routing them,
securing them and using grommets and loom where
appropriate. If you are running wires into a door, use
existing factory wiring boots whenever possible. If
you are drilling new holes, file their edges and install
rubber grommets into each hole. Wires running into
car doors should be covered with a protective, flexible
PVC sleeve. Make sure that the wires will clear door
hinges and other structures in the door.
WARNING
!!
Double check the clearance for both speakers
before proceeding. Many cars are different from
one side to the other!
8


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